Toy for children to tie knots



FIG. 1 is a perspective view of my invention for a design of a toy for children to tie knots;

FIG. 2 is a top plan view of FIG. 1;

FIG. 3 is a front elevational view of FIG. 2, the rear elevational view is the same; and,

FIG. 4 is a side elevational view of FIG. 2, the opposite side appearing exactly the same. 

The ornamental design for a toy for children to tie knots, as shown and described. 